In our throughput test, the SNV3400-400G peaks at the end of the test at 2,281.54MB/s, some way short of the official 3,100MB/s.
In the write throughput test, the drive peaks at the 256KB block mark at 700.83MB/s, some 150MB/s faster than the official rating of 550MB/s, before slowly dropping back to finish the test run at 610MB/s.